rtp.js
Version:
RTP stack for Node.js and browser written in TypeScript
90 lines (89 loc) • 4.16 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const GenericFeedbackPacket_1 = require("../../../packets/RTCP/GenericFeedbackPacket");
const FeedbackPacket_1 = require("../../../packets/RTCP/FeedbackPacket");
const RtcpPacket_1 = require("../../../packets/RTCP/RtcpPacket");
const helpers_1 = require("../../../utils/helpers");
const genericFeedbackPacket = {
byteLength: 20,
padding: 1,
packetType: RtcpPacket_1.RtcpPacketType.PSFB,
count: 15, // Used to indicate FMT, so 15.
messageType: FeedbackPacket_1.PsFeedbackMessageType.AFB,
senderSsrc: 0x11223344,
mediaSsrc: 0x55667788,
bodyLength: 7,
};
const array = new Uint8Array([
0xaf,
0xce,
0x00,
0x04, // Padding, FMT: 15 (AFB), Type: 206 (PSFB), Length: 4
0x11,
0x22,
0x33,
0x44, // Sender SSRC: 0x11223344
0x55,
0x66,
0x77,
0x88, // Media SSRC: 0x55667788
0x00,
0x11,
0x22,
0x33, // Body
0x44,
0x55,
0x66,
0x01, // Padding (1 byte)
]);
const view = new DataView(array.buffer, array.byteOffset, array.byteLength);
const bodyView = new DataView(array.buffer, array.byteOffset + 12, 7);
describe('parse RTCP generic Feedback packet', () => {
test('buffer view is RTCP', () => {
expect((0, RtcpPacket_1.isRtcp)(view)).toBe(true);
});
test('packet processing succeeds', () => {
const packet = new GenericFeedbackPacket_1.GenericFeedbackPacket(view);
expect(packet.needsSerialization()).toBe(false);
expect(packet.dump()).toEqual(genericFeedbackPacket);
expect((0, helpers_1.areDataViewsEqual)(packet.getView(), view)).toBe(true);
expect((0, helpers_1.areDataViewsEqual)(packet.getBody(), bodyView)).toBe(true);
packet.serialize();
expect(packet.needsSerialization()).toBe(false);
expect(packet.dump()).toEqual(genericFeedbackPacket);
expect((0, helpers_1.areDataViewsEqual)(packet.getView(), view)).toBe(true);
expect((0, helpers_1.areDataViewsEqual)(packet.getBody(), bodyView)).toBe(true);
const clonedPacket = packet.clone();
expect(clonedPacket.needsSerialization()).toBe(false);
expect(clonedPacket.dump()).toEqual(genericFeedbackPacket);
expect((0, helpers_1.areDataViewsEqual)(clonedPacket.getView(), view)).toBe(true);
expect((0, helpers_1.areDataViewsEqual)(clonedPacket.getBody(), bodyView)).toBe(true);
});
});
describe('create RTCP generic Feedback packet', () => {
const packet = new GenericFeedbackPacket_1.GenericFeedbackPacket(undefined, RtcpPacket_1.RtcpPacketType.PSFB, FeedbackPacket_1.PsFeedbackMessageType.AFB);
test('packet view is RTCP', () => {
expect((0, RtcpPacket_1.isRtcp)(packet.getView())).toBe(true);
});
test('packet processing succeeds', () => {
packet.setSenderSsrc(genericFeedbackPacket.senderSsrc);
packet.setMediaSsrc(genericFeedbackPacket.mediaSsrc);
// Let's set body with 7 bytes length so it should be internally padded
// to 8.
packet.setBody((0, helpers_1.numericArrayToDataView)([0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66]));
expect(packet.needsSerialization()).toBe(true);
expect(packet.dump()).toEqual(genericFeedbackPacket);
expect((0, helpers_1.areDataViewsEqual)(packet.getView(), view)).toBe(true);
expect((0, helpers_1.areDataViewsEqual)(packet.getBody(), bodyView)).toBe(true);
packet.serialize();
expect(packet.needsSerialization()).toBe(false);
expect(packet.dump()).toEqual(genericFeedbackPacket);
expect((0, helpers_1.areDataViewsEqual)(packet.getView(), view)).toBe(true);
expect((0, helpers_1.areDataViewsEqual)(packet.getBody(), bodyView)).toBe(true);
const clonedPacket = packet.clone();
expect(clonedPacket.needsSerialization()).toBe(false);
expect(clonedPacket.dump()).toEqual(genericFeedbackPacket);
expect((0, helpers_1.areDataViewsEqual)(clonedPacket.getView(), view)).toBe(true);
expect((0, helpers_1.areDataViewsEqual)(clonedPacket.getBody(), bodyView)).toBe(true);
});
});